For the purpose of this subchapter and Ch. 35 of this code of ordinances, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
APPROVING AUTHORITY. The Council of the City of Owatonna, or its duly authorized board, agent or representative.
BOD. The quantity of oxygen expressed in parts per million by weight, utilized in the biochemical oxidation of organic matter under standard laboratory conditions in five days at a temperature of 20°C. The laboratory determination shall be made in accordance with procedures set forth in Standard Methods.
BUILDING DRAIN. The part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of the building and conveys it to the building sewer, beginning three feet outside the inner face of the building wall.
BUILDING SEWER. The extension from the building drain to the sewer or other place of deposit.
CAPITAL COST. The total cost incurred in the construction of wastewater treatment facilities, consisting of, but not limited to, the sums spent for the following purposes:
(1) Actual sums paid for construction of wastewater treatment facilities;
(2) Actual engineering fees paid for preliminary engineering studies, plans and specifications, supervision during construction, construction staking, operation and maintenance manuals and initial operator training;
(3) Actual sums paid for soils investigations, wastewater sampling and materials testing required for such construction;
(4) Actual fees and wages paid for legal, administrative and fiscal services required by construction of wastewater treatment facilities; and
(5) Actual interest paid on the total amount financed by debt obligation for construction of wastewater treatment facilities.
CITY. The City of Owatonna, Minnesota, or any authorized person acting in its behalf.
COLLECTION SYSTEM. The system of sewers and appurtenances for the collection, transportation and pumping of domestic wastewater and industrial wastes.
DOMESTIC WASTEWATER. Water-borne wastes normally discharged into the sanitary conveniences of dwellings (including apartment houses and hotels), office building, factories and institutions, free of storm and surface water and industrial wastes.
GARBAGE. Solid wastes and residue from the preparation, cooking and dispensing of food; and from the handling, storage and sale of food products and produce.
INDUSTRIAL SERVICE CHARGE. The charge made to users of the public sewer system whose wastes exceed in strength the concentration values established as representative of normal sewage, or exceed 10,000 gallons in average daily flow.
INDUSTRIAL WASTE. Water-borne solids, liquids or gaseous wastes resulting from and discharged, permitted to flow or escaping from any industrial, manufacturing or food processing operation or process or from the development of any natural resource, or any mixture of these with water or domestic wastewater as distinct from normal domestic wastewater.
NATURAL OUTLET. Any outlet into a watercourse, pond, ditch, lake or other body of surface or ground water.
NORMAL DOMESTIC WASTEWATER. Normal wastewater for the city in which the average concentration of suspended materials and five-day BOD is established at 240 parts per million each, by weight.
OPERATION AND MAINTENANCE COST. Annual expenditures made by the city in the operation and maintenance of its wastewater treatment facilities, consisting of, but not limited to, the sums spent for each and all of the following purposes for the 12-month period of record prior to computing the industrial service charge:
(1) Wages and salaries of all operating, maintenance, administrative and supervisory personnel, together with all premiums paid on such wages and salaries (state worker’s compensation coverage, for example);
(2) Actual sums paid for electricity for light and power used for wastewater collection and treatment facilities;
(3) Actual sums paid for chemicals, fuel and other operating supplies;
(4) Actual sums paid for repairs to and maintenance of wastewater treatment facilities and the equipment associated therewith;
(5) Actual sums paid as premiums for hazard insurance carried on sewerage works;
(6) Actual sums paid as premiums for insurance providing coverage against liability imposed by law for the injury to persons and/or property (including death) of any person or persons resulting from the use and maintenance of said sewerage works; and
(7) Actual sums paid for replacement of equipment within the useful life of the wastewater treatment facilities, for example the cost to replace an electric motor or pump that fails, or a broken part in a pump.
PARTS PER MILLION. A weight-to-weight ratio; the parts per million value multiplied by the factor 8.345 shall be equivalent to pounds per million gallons of water. PARTS PER MILLIONS and MILLIGRAMS PER LITER (mg/l) shall be synonymous terms.
PERSON. Any and all persons, natural or artificial, including any individual, firm, company, association, governmental unit or group.
pH. The logarithm (base 10) of the reciprocal of the hydrogen ion concentration expressed in moles per liter. It shall be determined by one of the procedures outlined in Standard Methods.
PROPERLY SHREDDED GARBAGE. The wastes from the preparation, cooking and dispensing of food that have been shredded to such a degree that all particles shall be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than one-half inch in any dimension.
PUBLIC SEWER. A sewer in which all owners of abutting properties shall have equal rights and interest controlled by public authority.
SANITARY SEWER. A sewer that conveys wastewater or industrial wastes or a combination of both, and into which storm, surface and ground waters or unpolluted industrial wastes are not intentionally passed.
SEWER. A pipe or conduit for carrying wastewater.
SEWERAGE WORKS. All facilities for collecting, pumping, treating and disposing of wastewater and industrial wastes.
STANDARD METHODS. The examination and analytical procedures set forth in the latest edition at the time of the analysis of Standard Methods for the Examination of Water and Wastewater, as prepared, approved and published jointly by the American Public Health Association, the Water Pollution Control Federation and the American Water Works Association.
STORM SEWER or STORM DRAIN. A sewer that carries storm and surface water and drainage, but excludes wastewater and polluted industrial wastes.
STORM WATER and STORM WATER RUNOFF. The portion of the rainfall that is drained into the storm sewers or storm drains.
SUSPENDED SOLIDS. Solids that either float on the surface of, or are in suspension in water, wastewater or other liquids, and which are removable by a laboratory filtration device. Quantitative determination of SUSPENDED SOLIDS shall be made in accordance with procedures set forth in Standard Methods.
UNPOLLUTED WATER OR WASTE. Water or waste containing none of the following: emulsified grease or oil; acids or alkalis; phenols or other substances imparting taste and odor in receiving water; toxic or poisonous substances in suspension, colloidal state or solution; and noxious or otherwise obnoxious odorous gases. It shall contain not more than five parts per million each of suspended solids and BOD. The color shall not exceed 50 units under procedures set forth in Standard Methods.
WASTEWATER. A combination of the water-borne waste from residences, business buildings, institutions and industrial establishments, together with such ground, surface and storm water as may be present.
WASTEWATER TREATMENT FACILITIES. Any city-owned facilities, devices and structures used for receiving and treating wastewater from the city sanitary sewer system.
WATERCOURSE. A channel in which a flow of water occurs, either continuously or intermittently.
(1992 Code, § 276:03)